[#CTxIn-2constructor-0e]
= xref:CTxIn.adoc[CTxIn]::CTxIn
:relfileprefix: ../
:mrdocs:

Constructors

== Synopses

Declared in `<primitives/transaction.h>`

Constructs an input with a final sequence number and empty fields.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CTxIn/2constructor-0b.adoc[CTxIn]();
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Constructs an input spending a given outpoint.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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explicit
xref:CTxIn/2constructor-05.adoc[CTxIn](
    xref:COutPoint.adoc[COutPoint] prevoutIn,
    xref:CScript.adoc[CScript] scriptSigIn = CScript(),
    uint32_t nSequenceIn = SEQUENCE_FINAL);
----

[.small]#xref:CTxIn/2constructor-05.adoc[_» more..._]#

Constructs an input spending output nOut of a given transaction.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CTxIn/2constructor-00.adoc[CTxIn](
    xref:Txid.adoc[Txid] hashPrevTx,
    uint32_t nOut,
    xref:CScript.adoc[CScript] scriptSigIn = CScript(),
    uint32_t nSequenceIn = SEQUENCE_FINAL);
----

[.small]#xref:CTxIn/2constructor-00.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *prevoutIn*
| The previous output being spent.
| *scriptSigIn*
| The signature script satisfying the output.
| *nSequenceIn*
| The sequence number for the input.
| *hashPrevTx*
| Hash of the transaction holding the spent output.
| *nOut*
| Index of the spent output within that transaction.
|===


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